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Table 3 Factors associated with optimal adherence (≥95%) to ART

From: Long-term adherence to antiretroviral therapy in a South African adult patient cohort: a retrospective study

Variable OR 95%CI p-value aOR 95%CI p-value
Time since ART initiation (years) 1.10 1.05–1.16 0.0002 1.10 1.05–1.16 0.0001
Gender (ref: male)
 Female 1.25 0.99–1.58 0.055 1.33 1.05–1.67 0.017
Age (ref: > 40 years)
 ≤25 years 0.78 0.51–1.19 0.249 0.77 0.46–1.27 0.302
 26–40 years 1.06 0.83–1.36 0.631 1.11 0.85–1.43 0.450
Marital status (ref: not married)
 Married 0.91 0.69–1.21 0.537  
Educationa (ref: Secondary school completed)
 No schooling 2.39 0.91–6.29 0.078 2.42 0.95–6.16 0.063
 Secondary school not completed 0.91 0.71–1.15 0.422 0.92 0.72–1.19 0.535
Employment status (ref: student)
 Employed 0.72 0.42–1.25 0.242 0.70 0.42–1.17 0.170
 Unemployed 0.63 0.35–1.11 0.110 0.66 0.39–1.12 0.124
Primary breadwinnera (ref: no)
 Yes 1.20 0.92–1.56 0.177 1.32 1.02–1.72 0.034
Household tap watera (ref: no)
 Yes 0.85 0.52–1.38 0.515  
Household electricitya (ref: no)
 Yes 0.83 0.55–1.25 0.370  
Telephonea (ref: no)     
 Yes 1.19 0.92–1.53 0.189 1.20 0.93–1.54 0.162
Tested for HIV prior to studyb (ref: no)
 Yes 0.98 0.77–1.24 0.869  
Disclosed HIV statusb (ref: no)
 Yes 1.08 0.85–1.37 0.521  
Baseline CD4 count (cells/mm3)c 1.00 0.9986–1.0004 0.284  
Baseline WHO stage (ref: Stage 3)
 Stage 4 0.85 0.49–1.47 0.553  
  1. ART Antiretroviral therapy
  2. OR Odds ratio
  3. aOR Adjusted odds ratio
  4. CI Confidence interval
  5. a 1 missing data
  6. b 9 missing data
  7. c 4 missing data